Dust preventer for moving vehicles



June 15 1926.

'- 1.. LINDSAY DUST PREVENTER FOR MOVING ynmcmas Filed August 2, 1923 means forcatching and'diverting t carrying dust which 15 moving toward the Patented .lune 15, 1925.

* 1 iseasee 'LYcUneUs massages, LOS enemas, CALIFORNIA,

DUST PREVENTEB F013, MOVING- VEHICL IE lS Application filed August 2, 1922. semi No. 655,215.

This invention relates to device for protecting vehicle passengers from flying dust. It is especially adapted for. railway sl-cping cars in which a passenger is sleeping next to an open window provided with a screen. Most of the present sleepingcoaches are provided with projections on the sides of the cars between windows which serve to stop large particles but have the disad vantage of allowing eddies in the air, cre- .ated immediately in back of them, to carry fine dust which may pass into the coach upon striking the window screen.

An object of this invention is to provide a he air vehicle window.

,With the above and other objects in view, this invention consists of the features of construction and combination and arrangement of parts hereinafter described and claimed, reference being made to the accompanying drawing, in which Fig.1 is a view in outside elevation of a railway sleeping coach, showing the application of my invention.

Fig. 2 is a section taken on the line 22 of Fig. 1.

Fig.3 is a section taken on the line 33 of Fig. 1.

-Referringto the drawing in which similar referencecharacters refer to sin'iilarparts, I provide a vehicle such as'a railway coach having windows 11 in which may be set a small screen 12; with a scroll 13 ha ing a top 1e, both scroll and top being preferably made of sheet metal. Preferably the scroll islonger than the vertical length of the car window, its lowermost portion being about four or five inches below the window sill. From this point downward the scroll becomes-a closed tube. 15, as shown in Fig. 3, having the portion which forms the inner wall of the scroll opening enclosed within. The tube 15 extends a few inches below the floor of the car. A fastening means for mounting the device upon'the coach is provided, which consists of bracket 17 fastened to the scroll 13 and equal to its length, having a bent portion 18 which lies against the outside of the car and through which screws or nails may be driven, or fastened with thumb screws or other means, against the side of car. This bracket is tangent to the inner wall of the scroll opening" and helps to direct the dust laden air passing immediately outside the window into the scroll. The fastening means also consistsof a smaller bracket 19 fastened to the scroll 13 and the tube 15 and, running from the top of the scroll to the bottom otthe tube- This is provided with a bent portion 20 which alsolies against the outside of the vehicle and through The air moving toward the windows of the moving vehicle is directed int the opening of the scroll 13 by the bracket 17. The only exit being at the bottom of the tube 15, the air and all dust particles which it carries are directed' downwardly through the tube 15, as indicatedin Fig. 1, and are not. allowed to pass in toward the window behind the scroll. Because of the use of two oppositelyopened scrolls between pairs of windows, the air and dust particles will be caught-and diverted regardless of which direction'the vehicle may be moving. The advantage of the device over a mere outstanding projection is that by catching and diverting the air, the tendency to produce eddy currents immediately in back of said device, which .allows particles of fine dust to pass through the window screen, is great- 1y reduced. Y

It is understood that changes may be made in the detailsof construction without departing from the spirit of my invention,

hat I claim is:

1. A dust preventer for vehicles, comprising in combination a vertical sheet of metal. shaped like a scroll, with the outer edge overlapping and spaced from the inner edge of the sheet, a bracket secured to the front side of the scroll adjacent the inner edge of the sheet, having an inclined air deflecting plate to force air into the space between the outer and inner edges of'the sheet, such outer edge being in the direct draft of the moving vehicle, w r

2. A dust preventerfor vehicles as claimed rear of the scroll and a tube formed on the in claim 1, in which a tube is formed at the lower end of the scroll by lapping the outer lower end of the scroll by lapping the outer edge of the scroll sheet over the inner edge 10 edge of the scroll sheet over the inner edge to cont act'therewith. v 6 until it cont-acts therewith. f In testimony whereof I have signed my 3. A dust preventer for vehicles as name to this specification. v claimed in claim 1, haying a bracket at the I L. LINDSAY. 

